Stave-jointing machine



(No Model.) 2 Sheets-Sheet 1.

W. BROWN.

. STAVEYJOINT-INGMAGHINB. N0. 257.652. Patented May 9,1882.

Fig.1.

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(No Model.) 2. Sheets-Sheet 2.

W. BROWN.

STATE JOINTING MACHINE. No. 257,652. Patented May 9, 1882.

N. PETERS. Pnnlwumo n hqn Washington, D. C.

UNITED. STATES PATENT OFFICE.

\VILLIAM BROWN, OF ST. LOUIS, MISSOURI.

STAVE-JOINTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 257,652, dated May .9, 1882.

Application filed November 26, 1881.

To all whom it may concern:

Be it .known that I, WILLIAM BROWN, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful I mprovement in Stave- Jointing Machines, of which the following is a specification, reference being had to the accompanying drawings, forming part of the same.

My invention relates to a-machine in which the staves are V passed between two inclined saws so arranged as to give the proper bevel to the edges of the stave, the proper tapering form resulting from the manner of presenting the staves to the saws by an improved stavecarrying wheel or sector,which constitutes the chief novelty of my invention.

In the drawings, Figure 1 is a side view of the machine, parts being broken away and one of the saws with its supporting-arm removed. Fig. 2 is a detail front view. Fig. 3' is an enlarged section of the rim of the carryingwheel and a stave at 3 3, Fig. 1. Fig.4is an enlarged front view of the saws with the supportingarms and hangers, and Fig. 5 is a side view of the same.

The saws A may be supported in any suitable manner. I prefer to support their mandrels B upon arms 0, which are adjustable on a fulcrum, D, that is located above the saws at such a distance as to give the required bevel to theedges of the stave whatever the space between the saws may be. The fulcrum-pin is supported by hangers E.

The upper ends of the arms 0 carry pivoted nuts F, in which work the right and left screwt'hreaded ends of the screw-rod G. This rod G passes through vertical slots h in the two jaws lb of a bracket, H, the slots being indicated by dotted lines in Fig. 4.

Between the jaws h and fixed to the screwrod G is a hand-wheehI, by which the rod is turned to expand or contract the arms 0.

The saws A are rotated by belts on the pulleys b or by any other suitable means.

J is the stave-carrying wheel. Its upper part passes between the saws. The rim of the wheel is formed into a number of tangential beds, j, for the reception of staves K, which are simply laid on the beds in their straight form so with that side downward which is upon the outside of the barrel or keg. Thus it will be (No modeLl seen that when the saws are set at the proper inclination (theirtops approaching more nearly than their bottoms) the edges of the staves will have the proper degree of bevel given to them in passing between the saws. It will be also seen that the endwise' taper of the staves will be produced from the fact that the central part of the stave is carried between the saws where they are farther asunder than at the point where the ends of the staves pass between the said saws, owing to the staves lying in a tangential position upon the wheel.

To prevent the friction of the sides of the saws against the edges of the staves, I so incline the saws that their front edges are some what nearer together than their rear edges. This fore-andaft inclination of the'saws' is shown in Fig. 4, where the outer sides of the saws are shown in perspective.

To return to the stave-carrying wheel. The shaft L of the wheel has bearing in boxes hi, supported upon the bridge'trees N, one on each side of the wheel. The bridge-trees have hingesupports at one end, 0, and are supported at the other end upon a lightcr-screwfiP, extending through a beam, Q, and carryinga lighterwheel, B, bearing upon the beam Q and screwing upon the screw-rod P. By means of this arrangement the wheel J may be raised or lowered, to adjust it for the sawing of staves for barrels of various diameters, within certain limits. The wheel J may be. driven by any suitable means.

The rim of the wheel is made somewhat narrower than the narrowest part of the finished stave, so that it will not come in contact with the saws. The stave-beds should be made concave, so that the staves will rest upon the sides of the bed (see Fig. 3) to give good bearing for the staves, for it will be observed that if there should be any cxoresccnce on the under side of the stave bearing upon the bed it might cause the stave to lie unsteadily and interfere with the proper action of the sawsnpon it. V

j is a stud, against which the rear end of the stave bears, and by which the stave is pushed forward. The stud may be made movable for staves of various lengths.

' S is a fixed side guide to insure the states When the staves have been carried between the saws they will slip forward out of their beds without the assistance of any special device for discharging them from the wheel; but either a fixed or movable discharging device may be added to lift or throw the stave from its bed.

It is proper or better that the saws should have sufficient thickness to cut up the whole of the material removed from the edges of the stave in jointing it. For this reason the saws may be made to consist of a number of plates, as shown, or of a single plate having the requisite thickness.

By making the wheel J of the required diameter any suitable curve can be given to the edges of the stave.

By adjusting the \vheel J vertically the machine may be used for thejointing ot'staves for barrels ot'various sizes within prescribed limits.

Byadjusting the saws'as to distance asunder staves of various widths may be jointed.

As an equivalent of the rotary wheel J may be used an oscillating sector carrying one or more staves.

l have shown circularsaws; butI do notconfine myselfto these, for other saws might be nsedt'or instance, band-saws.

I elain1- 1. The combination of a feed-wheel, J, having tangential beds j, each provided with a single stud,j, and the inclined saws A A, the wheel being adapted to deliver the blanks after being cut, and the inclined saws, mounted one on each side of the wheel and adapted to hold the blank down in its place on the bed while sawing the sides in jointing, as set forth.

v2. In combination with inclined saws, a feed-wheel beneath,having straightbedsj, said wheelbeing adjustable toward and away'from the sawsand adapted to deliver the blanks lengthwise to the saws, as set forth.

WM. BROWN.

Witnesses:

SAML. KNIGHT, Geo. I-I. KNIGHT. 

